136
15. TROUBLESHOOTING
WARNING SYSTEM COMES ON
SYMPTOM POSSIBLE CAUSE REMEDY
Overheat warning system comes on:
• Overheat indicator comes on.
• Overheat warning buzzer sounds.
• Engine speed decreases and stops at last.
• Engine speed cannot be increased by opening the throttle.
• Engine will stop in 20 seconds after engine speed is limited.
Cooling water intake port clogged. Clean the cooling water intake port.
Spark plugs have improper heat range. Replace the spark plugs (see page 114).
• Faulty water pump.
• Thermostat clogged.
• Faulty thermostat.
• Cooling water passage clogged.
• Exhaust gas invades cooling system.
Consult with your outboard motor
dealer.
Oil pressure warning system comes on:
• Oil pressure indicator does not come on.
• Oil pressure warning buzzer sounds.
• Engine speed decreases.
• Engine speed cannot be increased by opening the throttle.
Shortage of engine oil Add engine oil to the specified
level (see page 51).
Improper engine oil is used. Change the engine oil
(see page 112).
PGM-FI warning system comes on:
• PGM-FI indicator comes on.
• PGM-FI warning buzzer sounds intermittently.
PGM-FI warning system is faulty. Consult with your outboard motor
dealer.
ACG warning system comes on:
• ACG indicator comes on.
• ACG warning buzzer sounds intermittently.
Battery voltage is too high or low. Check the battery (see page 116).
Faulty ACG. Consult with your outboard motor
dealer.
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